Which of the following will cause an instrumental deviation in Beers Law? I. stray light II. unclean optics such as mirrors, lens, and lamps III. fingerprint on the clear area of the quartz cuvette IV. mismatched cell   A. I, II, and III only   B. I, II, III and IV   C. I and III only   D. II and IV only

Q: estion 8 Which process in the diagram below shows fluorescence? Singlet excited statos 2 Triplet exc...

A: Fluorescence is the process in which radiation are emitted by the the molecule and it pass into the ...

Q: Which is TRUE for spectroscopy of a mixture? O A. The absorbance for a mixture at a particular wavel...

A: Absorbance is a additive properties ,if two components have absorbance A1 and A2 in a particuler wav...

Q: compare the amount of heat given off by 1.40 mol of liquid water when it cools from 100.0c to 30c to...

A: Heat capacity of liquid water - 4.184 J/(g oC) Heat capacity of steam - 2.03 J/(g oC) Amount of wate...

Q: QUESTION 1 The vapor pressure of pure CCI4 liquid is 504 mm Hg at 65°C. Now we prepare several 12/CC...

A:

Q: Structure A: Complete the resonance structure. Select Draw Rings More Erase // C H H.

A: Resonance structure :- is delocalization of  charge on atom.  

Q: In Paper Chromatography, when the solvent wicks up the paper and causes the separation of your mixtu...

A:

Q: Which of the following statements are true of atomic emission spectroscopy (AES)? I. Atoms are promo...

A:

Q: The freezing pt. of a solution containing 65g of a compound in 100g benzene is 3.8 degree celcius. w...

A: The depression in freezing point is directly proportional to the molality of the solution. ∆Tf direc...

Q: Determine the pH and percent ionization for a hydrocyanic acid (HCN) solution of concentration 1.6 x...

A: Given: Concentration of HCN = 0.0016 M                            And Ka of HCN = 4.9 × 10-10  The p...

Q: What is the intermediate for the reaction? HO NaCaro7 HO H2SO4, H20 O The following compound: O The ...

A:

Q: 27. You've been given an unknown alkane in the lab (compound X) its molecular formula is C7H16. When...

A: In the given problem, an alkane X having a molecular formula of C7H16 undergoes the bromination reac...

Q: Refer to the given pair of structure, the structures are СООН СООН functional isomers B) positional ...

A: Isomers are those molecule which have same molecular formula but different structure or different bo...

Q: 3. Hess's Law. Identify if the reaction is endothermic or exothermic. Chlorine trifluoride is a colo...

A: We have to rearrange the equation to get desired net equation 

Q: A solution is prepared by adding 2.0 g of solid CaBr2 and 1.55g of NaBr to 100.ml of 0.15 M AlBr3.  ...

A: Given, A solution is prepared by adding 2.0 g of solid CaBr2 and 1.55g of NaBr to 100.ml of 0.15 M A...

Q: Which of the following is FALSE about the wavelengths of electromagnetic radiation? O A. Radiation w...

A: We have to predict the false statement.  

Q: Which of the following is FALSE about the absorbance of a compound?   A. Solutions containing tran...

A: Which of the following is FALSE about the absorbance of a compound? False answer is given below.

Q: HO, A B D Arrange the following according to decreasing boiling point (1 - highest to 4 -lowest). Pr...

A:

Q: Chemical Test Unknown A Unknown B Unknown C Unknown D Water Solubility/Litmus soluble, neutral solub...

A: The answer is as follows:  

Q: Two beakers are placed in a small closed container at 25 °C. One contains 231 mL of a 0.267 M aqueou...

A:

Q: Write defect reactions for FeO and NiO. What oxide would form from each of the defect reactions?

A: Solid defects are of three types: 1. Stoichiometric defects 2. Non-stoichiometric defects 3. Impurit...

Q: Estimate the normal boiling point temperature [in the Celsius scale] of a substance if its boiling p...

A: The relationship between the vapour pressure and the temperature of the liquid is given by, => ln...

Q: Give the structure of the following organic compounds: a. 3-Ethyl-5-isobutyldecane b. 2-Chloro-3-eth...

A:

Q: Which of the following statements DOES NOT describe the real limitation of Beer's Law? The concentra...

A:

Q: In 1994 it was proposed ( and eventually accepted) the element 106 be named seaborgium(sg) in honor ...

A: • We need to write a balanced nuclear equation for the reaction of californium-249 and oxygen-18 to ...

Q: What is the color of a visible radiation having an energy of 3.60 x 10-19 Blue : 440 - 490 nm קנ Gre...

A: Given :- energy of radiation = 3.60 × 10-19 J  To identify :- color of radiation  

Q: Which of the following correctly describes the known mechanism of the Diels-Alder reaction? Select o...

A: Pericyclic reactions are proceeds by a cyclic shift of electrons by a single-step reaction (concerte...

Q: What are the Miller indices of the slip directions: (a) on the (111) plane in an FCC unit cell? (b) ...

A: To determine the Miller indices of slip directions for the (111) plane in FCC unit cell and (011) in...

Q: parts

A: From the graph, we can conclude that "The given graph represents that the pressure of the BF3 decrea...

Q: obtained from Pentene-3? (2) Write the halogenation reaction of cycloheptane with mention of the aux...

A: The given molecule in the first question is  wrong. Thus the first valid question is question 2. As ...

Q: Which of the following statement is correct? A Pi delocalization is present with conjugated system (...

A: The lone pair can take part in resonance with a double bond.

Q: Starting with the following equation, P,(s) + F,(g) → PF,(9) calculate the moles of F, that will be ...

A:

Q: water-softening ion exchange systems is

A: The prese of Ca , Mg salts results hardness of water . This Ca or Mg salts react with chemical agent...

Q: A НО HO HO H B Which box contains carbonyl carbon? Вох А B Вох В both ....I םיהו..

A:

Q: 1,3- Butadiene undergoes an electrophilic addition with Hbr. Complete the steps in the mechanism to ...

A:

Q: what is the product?

A:

Q: The equilibrium constant is given for one of the reactions below. Determine the value of the missing...

A:

Q: A metal erystallizes in a face-centered cubic lattice. The radius of the atom is 196 pm and the dens...

A: Given that radius of the atom = 196 pm

Q: What process is involved in #4?     A. external conversion   B. vibrational relaxation   C. i...

A:

Q: The standard addition method is used to analyze a sample of a river water for mercury. Solution A is...

A: Cold vapour atomic absorption spectroscopy or CVAAS is one of the primary techniques for mercury ana...

Q: The rate of a certain reaction is given by the following rate law: rate=k[ H2 2 =k[H=][L] Use this i...

A: Given,  Rate law equation is :  Rate = k.[H2].[I2]  Then find = ?

Q: * 00 3. Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and...

A:

Q: onstant is given for two a B(g) Kc = ?

A:

Q: Consider the following reaction: SO2 Cl2 (g) = SO2 (g) + Cl2 (g) K. = 2.99 x 10-7 at 227 °C You may ...

A: Given reaction: SO2Cl2 (g) ⇌ SO2 (g) + Cl2 (g) Given, Kc = 2.99 × 10-7 Given, the initial concentrat...

Q: e mass in kC

A:

Q: Sketch the proper structure (including stereochemistry) for each compound. a. (4R)-3,4-diethyl-4-met...

A: The IUPAC name along with structure is provided.

Q: calculate M.V. (1atm, 30 degrees

A: Volume at one mole is called molar volume

Q: When 2.0- SO, and C

A: Molarity of SO2Cl2 = mole/Volume         = 2.0/2.0 = 1.0    SO2Cl2 SO2 Cl2 I 1.0 0 0 C -a +a ...

Q: What is could be the calculated lambda max of this compound?

A:   Base value for heteroannular diene  214 nm  5 Ring residues =5×5=251 Double bond extending conjuga...

Q: 10-6 cm? What is the frequency of light having a wavelength of 4.50 x

A: Given :- wavelength of light = 4.50 × 10-6 cm  To calculate :- frequency of light 

Q: A chemistry lab with 22,000 cubic feet was contaminated with hydrogen sulfide. What will the average...

A: